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Welcome to Cemetech!
Since 2000, Cemetech (pronounced KE'me'tek) has been teaching programming and electronics and developing software and hardware.
Among Cemetech's specialties are TI, HP, and Casio graphing calculators like the TI-84 Plus, TI-Nspire, HP Prime, and Casio Prizm, embedded and DIY electronics, and computer and web programming. Cemetech provides a safe, friendly space for people to learn, show off projects, and share knowledge and expertise.
Our staff of friendly volunteers
hang out on our forum and IRC and SAX chatrooms, and are happy to help.

The results of the ticalc.org 2017 Program of the Year (POTY) contest have been announced. Near the end of the year, ticalc.org made a concerted push to feature current and past programs that had been overlooked in previous years, bringing the field to 10 TI-83 Plus/TI-84 Plus programs, 2 TI-84 Plus C Silver Edition programs, 8 TI-84 Plus CE programs, 8 68k (TI-89/TI-92/Voyage 200) programs, and 9 TI-Nspire programs. Winners include:

Reuben Quest: Lost Between Times by Sorunome (ticalc.org and Cemetech downloads) for the monochrome TI-83 Plus/TI-84 Plus.

Sorcery of Uvutu by 123outerme (ticalc.org and Cemetech downloads) for the TI-84 Plus C Silver Edition

Congratulations to the winners, and superb work from all of the contestants. We look forward to seeing all of the projects created this year that end up in ticalc.org's 2018 POTY, as well as eventually bringing you Cemetech's own 2017 Projects of the Year rankings.

Best wishes for a happy, peaceful Christmas and holiday season from the Cemetech staff to all of you and your family and friends! No matter what you celebrate (or don't), we hope you're able to take the end of the year to share some time with those who matter, reflect on the past year, and look forward to what's ahead. We particularly hope that even if you haven't had a chance to pick up your calculator or computer for a while to do some programming, that you take the opportunity to code up a project this winter.

If you need a little inspiration and Christmas cheer, here's a simple TI-BASIC program for the TI-84 Plus CE and TI-84 Plus C Silver Edition that will draw some Christmas greetings on your graphscreen. Just press [ENTER] after it pauses to end the program (and restore your graphscreen settings). If you're curious how it works and how to replicate it on your own calculator, just look in the attached topic, where we have the code and have challenged our members to provide the most accurate and concise explanation (yes, guys, that means you. Go to it!). Happy holidays!

And it's time again for a new round in the yearly ticalc.org POTY voting! This week you can vote for the newest and most popular calculator: the TI-84+CE. There were slightly less news articles about projects for this calculator than for the monochrome calcs, but nonetheless all great programs! These are the programs you can vote for:

So what are you waiting for? Sign in (or get an account), try out all the programs and hit that vote button! Like the previous weeks, you have 7 days to vote, then the next category will take place; the TI-89 programs. Good luck to all!

A new week has started which means it's time for a new poll in the yearly ticalc.org POTY voting. Previous week people had to vote for the TI-83+/TI-84+ monochrome calculators, and now it's the turn of the CSE. Despite being overshadowed by the popular CE calc, this category has still 2 programs to vote for, and here they are:

So, get your hands ready, try out both programs and vote for the best program! Like always, you have 7 days to vote, by signing in (or creating an account) and choosing your option from the poll at the homepage. Good luck to both programs!